{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

lecture September 1, 2010

lecture September 1, 2010 - If Netflix stock goes above...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Argument Markers o Indicate in English when statement is a premise o Since; because; for; as Conclusion Markers o Indicate in English when statement is a conclusion o Therefore; hence; ergo; thus; then Evaluating Arguments o Arguments are evaluated in terms of being valid/invalid’ sound/ unsound; or to a matter of degree weak/strong o Never evaluated as T/F bc you only evaluate propositions with these terms and arguments aren’t propositions Conditionals o Statements (propositions or declarative sentences) o Not arguments; evaluated by T/F o False when antecedent event is T and consequent is F If <antecedent> then <consequent>
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: If Netflix stock goes above $300, then Peter can retire a rich man. • Validity o A valid argument has the following properties: IF the premises are true, THEN the conclusion must be true o An argument is valid If and Only If it is not possible for all of its premises to be true and its conclusion false. o Validity is a property of an argument's FORM, not its content. Relationship of terms/ideas whether than what the terms actually mean 1') All As are Bs. 2') All Cs are As. 3') Therefore, all Cs are Bs. ….no instance in which premises are T and conclusion is F...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online